Patent US2568923A successfully refreshed from Google Patents.
US2568923A
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US
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Expansion joint apparatus
Assignee: Westinghouse Electric Corp
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Filing: 1948-03-23
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Granted: 1951-09-25
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Expires: 1968-03-23
Abstract
No abstract record available.
Inventors
- 👤 Samuel S Mcneary
- 👤 William R Berry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:52
CPC Classifications
F; F16; F16L; F16L51/00; F16L51/02; F16L51/03; F16L51/035
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2314776A
Cited
US2348833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |